Brown Fused Aluminum

INTRODUCTION: Brown aluminium oxide/brown fused alumina is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials. Abrasives Grade: Grit Size:         16#,20#,24#30#,36#,46#,54#,60#,80#,100#,120#,150#,180#,220# Micropowder: 240#,280#,320#,360#,400#,500#,600#,800#,1000#,1200#,1500#                          2000#,2500#,3000#,4000# Refractory  grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh The physical and chemical analysis Al2O3   MIN  95% TiO2    MAX   3.0% Fe2O3  MAX  .3% SiO2    MAX  1.5% Crystalsys tem :  Hexagonal Color:             Brown Micro hardness :  HV1800-2200 Grinding ability(compared with diamond as one):  0.10 Hardness(mohs)  : 9 Ture density :     3.9 g/cm3  Bulk density  :    1.68-1.95g/cm3   Purpose Specification Chemical Composition(%) Magnetic material content(%)max Abrasives grade Al2O3min Fe2O3max SiO2max TiO2max grain 12-80 95 0.3 1.5 3.0 0.05 90-150 94 0.3 1.5 3.0 0.03 180-220 93 0.3 1.5 3.5 0.02 micropowder 240-4000 92.5 0.5 1.8 4.0 — Refractory grade Group Size 0-1mm 1-3mm 3-5mm 5-8mm 94.5 0.3 1.5 3.0 — Fine Powder -180mesh -200mesh -240mesh -320mesh 93.5 0.5 1.5 3.5 — color Dark brown           Hardness(mohs) 9.0 Melting point(℃) 2250 Maximum service temperature(℃) 1900 Ture density(g/cm3) 3.9   Application: 1. Sanding blasting 2. Resinoid high bonded abrasive tooles 3. Grinding abrasive  4. Polishing materials 5. Precision casting